I had not used my venerable ThinkPad T400 for about 2 weeks. I booted normally but was told to run fsck manually because of errors.

I'm using 12.04 and the disk in question is ext4, a Samsung Evo 840, mounted noatime,nodiratime,discard,commit=600,errors=remount-ro

I ran fsck.ext4 on my / (mounted ro) and it fixed some errors:

• Inodes that were part of a corrupted orphan linked list


• Block bitmap differences


• Free inodes count wrong

fsck fixed these errors and the reports the partition to be OK.

Is it safe to use a disk after a successful fsck?